论文部分内容阅读
羌塘含油气盆地是我国境内最大的中新生代海相沉积盆地.羌塘地体内的中央隆起将盆地分为南北两个盆地.中央隆起带构造属性认识存在两种截然不同的分歧,一是伸展环境下形成,整个羌塘盆地有着同一的基底.而另一认识其是一古特提斯缝合带,其两侧盆地具有不同的演化机制.调查羌塘中央隆起的深部结构特征及其与南北两侧的盆地间的构造关系是认识羌塘盆地基底性质及其油气远景之关键科学问题.尽管羌塘地体在青藏高原形成演化过程中遭到了强烈改造,但在收集并分析已有地球物理资料基础上认为其深部结构仍有可能被完整保存.因此,利用密集宽频带流动台网观测,获取其深部结构,进而研究其与两侧盆地关系,是当前羌塘含油气盆地研究之重要突破口,同时该项研究符合我国当前国家油气资源战略评估政策.
The Qiangtang petroliferous basin is the largest Meso-Cenozoic marine sedimentary basin in China, and the central uplift in the Qiangtang terrane divides the basin into two basins: North and South basins. There are two distinct disagreements on the structural properties of the central uplift: Stretching environment, the whole of the Qiangtang Basin has the same basement, and the other is an ancient Tethyan suture zone, which has different evolutionary mechanisms on both sides of the basin.The investigation of the deep structural features of the Qiangtang central uplift and its correlation with The tectonic relationship between basins on both sides of the north and south is a key scientific issue for understanding the basement properties of the Qiangtang Basin and its hydrocarbon vista.Although the Qiangtang terrain has been strongly rebuilt during the evolution of the Qinghai-Tibet Plateau, Therefore, it is important to study the current Qiangtang petroliferous basin by using the observation of dense broadband mobile station network and obtaining its deep structure, and then studying the relationship with the deep basins in both sides of the basin Breakthrough, at the same time, this research accords with the current national oil and gas resources strategy assessment policy of our country.